1. The two types of primary porosity include: a. vugs and fractures; b. cementat
ID: 233997 • Letter: 1
Question
1. The two types of primary porosity include: a. vugs and fractures; b. cementation and intergranular porosity; c. intergranular and intragranular; d. intergranular and vugs 2. Which of the following best defines intergranular porosity? a. porosity that exists between minerals grains; b. porosity that formed after sediment deposition; c. porosity within minerals grains; d. All of the above 3. Which of the following best defines total porosity within a reservoir? a. ratio of connected pores to the total volume of rock; b. ratio of total pore space to the total volume rock; c. ratio of connected pores to the total volume of petroleum; d. ratio of total pore space to the total volume of hydrocarbons 4. When calculating the total volume of recoverable hydrocarbon, which type of porosity most accurately describes the best case scenario? a. closed porosity; b. total porosity; c. effective porosity; d. A and C 5. At the time of sediment burial, porosity of sedimentary rocks is typically >20%. Which factors dominate the reduction of primary porosity? a. cementation; b. temperature; c. burial depth; d. mineralogy; e. all of the aboveExplanation / Answer
1.The two types of primary porosity include:
b:cementation and intergranular porosity
Primary porosity in clastic and some carbonate rocks is a function of intergranular matrix and cement.
2. Which of the following best defines intergranular porosity?
a. porosity that exists between minerals grains
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